Answer:
Comparative
Step-by-step explanation:
Comparative adverbs show similarities or dissimilarities between two things or people. They are formed by adding the “-er” ending to the adverb to compare (usually when it is one-syllable adverb), or using “more” + the regular form of the adverb (usually when it is an adverb of two or more syllables like “swiftly”).
In the sentence, “more swiftly” is acting as a comparative adverb because it shows a difference between two things: the new government and the old one.